Physician Profile
Robert Peyster, M.D.
Unclaimed ProfileAbout Dr. Peyster
Robert Peyster, M.D. practices nuclear medicine in Stony Brook, NY. Robert is a 1973 graduate of State University of New York Downstate Medical Center. According to Medicare claims data, Robert cared for 4,448 Medicare patients across 13,852 services. The services billed most often include injection, gadobutrol, 0.1 ml, low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, and ct scan head or brain without contrast.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (631) 444-6919
- Email not available
Practice Locations
101 NICOLLS ROAD HSC L4 SUITE 120
Stony Brook, NY 11794
Procedures Most Often Billed to Medicare
13,852 services · 4,448 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct scan head or brain without contrast | Imaging | 70450 |
1,391 | More than most peers in Nuclear Medicine |
| Ct scan of upper spine without contrast | Imaging | 72125 |
658 | More than most peers in Nuclear Medicine |
| Ct scan of blood vessels of neck with contrast | Imaging | 70498 |
362 | More than most peers in Nuclear Medicine |
| Ct scan of blood vessels of head with contrast | Imaging | 70496 |
359 | More than most peers in Nuclear Medicine |
| Ct scan of lower spine without contrast | Imaging | 72131 |
333 | More than most peers in Nuclear Medicine |
| Ct scan of middle spine without contrast | Imaging | 72128 |
316 | More than most peers in Nuclear Medicine |
| Mri scan of brain without contrast | Imaging | 70551 |
230 | More than most peers in Nuclear Medicine |
| Ct scan of face without contrast | Imaging | 70486 |
143 | More than most peers in Nuclear Medicine |
| Mri scan of brain before and after contrast | Imaging | 70553 |
127 | More often than most peers in Nuclear Medicine |
| Mri scan of brain without contrast | Imaging | 70551 |
81 | More than most peers in Nuclear Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nuclear medicines in Stony Brook 6
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at State University of New York Downstate Medical Center 6
Other providers in the same specialty who trained at the same institution.
Class of 1973 at State University of New York Downstate Medical Center 8
Providers who graduated from the same medical school in the same year.
Also performs Ct scan head or brain without contrast 7
Providers in NY who bill this service to Medicare most often.
Common questions
What is Robert Peyster's specialty?
Robert Peyster is a nuclear medicine in Stony Brook, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Robert Peyster?
Robert Peyster is listed at 101 Nicolls Road Hsc L4 Suite 120, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Robert Peyster?
The number on file is (631) 444-6919. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Robert Peyster's NPI number?
Robert Peyster's National Provider Identifier is 1750318986. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Robert Peyster's education?
Robert Peyster attended State University of New York Downstate Medical Center, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How long has Robert Peyster been practicing?
Robert Peyster has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What is Robert Peyster known for?
According to Medicare billing data, Robert Peyster performs imaging including ct scan head or brain without contrast and ct scan of upper spine without contrast. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Robert Peyster confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Robert Peyster. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.